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revision 1.928 by jmc, Tue Dec 18 16:19:53 2007 UTC revision 1.1039 by jmc, Fri Nov 14 22:09:04 2008 UTC
# Line 4  $Name$ Line 4  $Name$
4      Notes on tags used in MITgcmUV      Notes on tags used in MITgcmUV
5      ==============================      ==============================
6    
7    o Prather Advection scheme: fix tracer conservation for divergent flow
8      (e.g., when using NonLin Free-Surface).
9    o kpp: retire KPPmld diagnostics --> use MXLDEPTH instead
10    o gmredi (Visbeck-variable-K):
11     - add more parameters to Visbeck-variable-K.
12     - use a 5 points average for dSigmaR in Visbeck-K calculation
13       (more "homogenous": same stencil and same weights as in dSigmaH)
14     - update output of ideal_2D_oce experiment.
15    o fix CPP-flag REAL4_IS_SLOW, when _RS expands into real*4
16      (#undef REAL4_IS_SLOW)
17     - pkg/mnc/mnc_cw_cvars.F: write _RS-grid variable as netcdf-real*4
18       coordinate variable
19     - pkg/monitor/monitor.F: call mon_printstats_rs for _RS variables
20       (surface forcing fields), removes some of the functionality
21     - model/src/write_grid.F: write _RS variables as RS-netcdf variables
22     - model/src/diags_oceanic_surf_flux.F: fix a few diagnostics, but
23       probably not all: copy _RS surface flux fields to RL field before
24       calling DIAGNOSTICS_FILL
25     - model/inc/CPP_EEMACROS.h: make the _EXCH_*_RS macros expand into
26       real*4 (CALL EXCH_*_RS) versions.
27     - tested in 2 experiments: inverted_barometer & solid-body.cs-32x32x1
28       (generate new output).
29    
30    checkpoint61e
31    o gmredi (Visbeck-variable-K):
32      - fix the "OLD_VISBECK_CALC" option + move the #undef to GMREDI_OPTIONS.h
33      - change computation of Visbeck-K where Slope > Smax :        
34        now: N*min(Slope,Smax) (similar to OLD_VISBECK_CALC with gkw91 taperFct)
35        previously was: M*sqrt(min(Slope,Smax)) ; update ideal_2D_oce output.
36    o bottom-drag in P-coord.: change units of bottomDragLinear & bottomDragQuadratic
37      to be the same as with Z-coord. (i.e., m/s & no-units respectively).
38    o calc_viscosity: fix index range (was wrong for CD-Scheme & explicit Visc)
39    o pkg gmredi, linear & fm07 tapering: put an upper limit on Slope^2 so that Kwz
40      does not become too large (to avoid precision problems in implicit-diffusion
41      solver); update ideal_2D_oce output.
42    o pkg ggl90:
43      - in ggl90_cal.F: compute only one set of visc/diff, used to
44        step forward TKE/T/S/momentum
45      - default value of GGL90viscMax/GGL90diffMax larger and equal (to
46        have Prandlt =1)
47    o gmredi (fm07):
48      - add lower limit on Transition layer thickness + lower limit on 1/lambda
49      - allow to set few more params from data.gmredi
50    o pkg ggl90:
51          - add missing sqrt(2) factor in computation of mixing length
52            scale in ggl90_calc.F
53            (see Eq. (2.35) in Blanke and Delecluse, JPO, 1993)
54    
55    checkpoint61d
56    o adjoint modifs
57      - adapt to new field rhoInSitu
58      - allow to revert from StoreDynVars2D, StoreDynVars3D
59        to individual fields
60        (switches AUTODIFF_USE_OLDSTORE_2D, AUTODIFF_USE_OLDSTORE_3D)
61    o store 3-D (in-situ) density in commom block (DYNVARS.h)
62     - save 1 rho computation.
63     - no longer modify T & S inland when using down_slope pkg.
64    o gad_som : allow to switch to SOM advection for T & S without corresponding
65      pickup files (using new S/R: MDS_CHECK4FILE).
66    o keep removing _BEGIN/_END_MASTER between MDSIO S/R call
67      (for useSingleCpuIO to work in multi-threaded)
68    o pkg/shelfice:
69     - disentangle parameters: retire shelfIceFile in data/PARM05 and substitute
70       with SHELFICEtopoFile in data.shelfice
71     - move code for reading ice shelf topography and modifying hFacC into separate
72       subroutines of the shelfice package
73     - separate initialisation of "fixed" and "variable" variables
74     - kTopC is not (yet) replaced by kSurfC, although this is possible
75    o fix broken diagnostic SIatmFW and changed the units from m/s to kg/m^2/s
76    o add initialisation of deepFac if using Pcoords (new S/R set_grid_factors)
77      and rename:
78      ini_phiref.F          --> set_ref_state.F  (+ set anelastic factors)
79      ini_reference_state.F --> load_ref_files.F (- set anelastic factors)
80    o change FIND_RHO_SCALAR : return rho (instead of rho - rhoConst)
81    
82    checkpoint61c
83    o add option ALLOW_ADDFLUID and run-time selector "selectAddFluid"
84      to add mass source/sink of fluid in the interior (3-D generalisation
85      of oceanic real-fresh water flux).
86    o pkg/monitor: fix recip_dr argument in mon_advcflw2 call (-> advcfl_W_hf_max)
87    o vermix test experiment: switch from LINEAR EOS to MDJWF (not tested before)
88    o new pkg: down_slope
89      density-driven downsloping flow parameterisation (Tellus, 1999, 412-430).
90      - presently, modify T & S inland (dwnslp_calc_rho.F).
91        can be avoided if rho was stored in common bloc and used in calc_phi_hyd.
92      - implementation for ocean in P-coords not tested.
93      - add secondary test to global_ocean.90x40x15 (input.dwnslp) to check this pkg.
94    o move kSurfC,kSurfW & kSurfS from SURFACE.h to GRID.h (next to kLowC)
95      (to facilitate conversion of oceanic pkg to p-coordinate).
96    o change FIND_RHO to FIND_RHO_2D :
97      pass arguments tFld & sFld as local (tile) 2D-arrays ; +fix EOS_CHECK.
98    o new pkg: cheapaml
99    
100    checkpoint61b
101    o exch2:
102      change index bounds in rx2_cube exchanges (new S/R: EXCH2_GET_UV_BOUNDS)
103      - no longer depend on the order sequence (N,S,E,W).
104      - 3rd exchange no longer needed (tested with 24 tiles).
105      - same modif to hand-written adjoint S/R (global_ocean.cs32x15: zero diff)
106      - exch_UV_A-grid readily available (but not yet tested).
107      comment out 3rd exch call and remove copy of V to U at SE & NE face-corners
108      (both are no longer needed) in exch_uv: no effect in forward run; but
109       get truncation error differences with adjoint exch.
110    o exch2:
111     - change index-bounds storage (moved from target to local tile,
112       more intuitive this way) ; rename/remove some variables.
113     - change utils/exch2/matlab-topology-generator & code_mods accordingly.
114    
115    checkpoint61a
116    o exch2/matlab-topology-generator:
117      fix bug in index bounds for N-S internal exchange (hard to tell if this
118      had any effect on the solution).
119    o pkg/mnc: small fix in mnc_handle_err: make sure that length of msgbuf
120      is exceeded
121    o testreport: modify syntax of awk, so that it works also with
122      awk, and not only with nawk and gawk
123    
124    checkpoint61
125    o autodiff
126      Change default for TAF usage by removing argument '-nonew_arg'
127      This changes TAF subroutine argument list (ordering of active var.)
128      Omission of this flag leads to incompatibility w.r.t. TAMC
129      To restore TAMC-compatibility, need following modifs:
130      * use adoptfile tools/adjoint_options/adjoint_tamc_compatibility
131      * use CPP option #define AUTODIFF_TAMC_COMPATIBILITY
132      Tested TAF version is 1.9.22
133      N.B.: exch2 hand-written adjoint code currently not TAMC compatible
134    
135    checkpoint60
136    --->>> This is the last checkpoint for which generating the adjoint
137    --->>> is done via the TAMC-compatibility TAF-flag "-nonewarg"
138    --->>> by default.
139    --->>> Future checkpoints will ommit this flag by default.
140    o pkg/generic_advdiff, os7mp: simplify and avoid division by zero.
141    o pkg/grdchk: Add gradient check to etan0 perturbations.
142    o pkg/exf: read ice area from file (#ifdef ALLOW_ICE_AREAMASK).
143    o pkg/autodiff: more flexibility in zeroadj.
144      model/src: modifying do_oceanic_phys.F accordingly.
145    o pkg/ctrl: Bounds for (kapgm,kapredi,eddypsi) parameter estimation.
146    o model/src and pkg/gmredi: GMREDI_WITH_STABLE_ADJOINT CPP option
147      special setup of gmredi for which the adjoint is stable
148      enough for parameter optimization.
149    o bridging the gap between eddy stress and GM.
150      -> eddyTau is replaced with eddyPsi (eddyTau = f x rho0 x eddyPsi)
151          along with a change in CPP option (now ALLOW_EDDYPSI).
152      -> when using GM w/ GM_AdvForm:
153          The total eddy streamfunction (Psi = eddyPsi + K x Slope)
154          is applied either in the tracer Eq. or in momentum Eq.
155          depending on data.gmredi (intro. GM_InMomAsStress).
156      -> ALLOW_EDDYPSI_CONTROL for estimation purpose.
157      The key modifications are in model/src/taueddy_external_forcing.F
158      pkg/gmredi/gmredi_calc_*F pkg/gmredi/gmredi_*transport.F
159    
160    checkpoint59r
161    o new S/R (pkg/mdsio/mdsio_facef_read.F) reading of sNx+1 x sNy+1 array
162      from per-face file (take S/R READSYMTILE_RS out of ini_curvilinear_grid.F);
163      fix option to read coriolis(@ cell-corner) from files with CS-grid.
164    o pkg/mnc: add some attributes to standard 1D-coordinate variables
165    o pkg/diagnostics: enforce missing_value attribute for scalar variables at
166      mass points, when using mnc for output
167      - add runtime parameter (missing_value, missing_value_int) to override
168        default (which is the value of getcon('UNDEF'))
169    o pkg/mnc: prepare mnc for the actual use of missing values with the
170      diagnostics package: small fix in mnc_cw_readwrite.template and more
171      initialisation of never used fields
172      - replace mnc_common.h and mnc_id_header.h with corresponding upper case
173      versions
174    o pkg/thsice/thsice_ini_vars.F added default initial values so that
175      thermodynamics sea ice solver does not blow up when some initial fields
176      are missing.
177    o move from external_forcing_surf.F to ini_forcing.F
178      the p-coord. hack consisting in using pLoad to set phi0surf ;
179      update output of tutorial_global_oce_in_p (affected @ truncation level).
180    o Freshen up a bit hs94.1x64x5, notably:
181      remove rotationPeriod and tRef=5*0. (adjoint only), and add
182      exactConserv=.TRUE.
183    o pkg/generic_advdiff:
184      change option GAD_ALLOW_SOM_ADVECT to GAD_ALLOW_TS_SOM_ADV which only
185      applies to files where Temperature & Salinity 2nd Order moments are used.
186    o pkg/ptracers: add second-order moment advection schemes (80 and 81);
187      this uses a dynamically allocated internal state data structure
188      (#define PTRACERS_ALLOW_DYN_STATE in PTRACERS_OPTIONS.h)
189      and requires a fortran 90 compiler
190    
191    checkpoint59q
192    o pkg/mom_vecinv: Add energy & enstrophy conserving scheme (selectVortScheme=3)
193       (from Sadourny, described by Burridge & Haseler, ECMWF Rep.4, 1977)
194    o Refresh tutorial_global_oce_biogeo, notably:
195      - change bathymetry (put back seamounts in ACC, use hFacs)
196      - change EOS (POLY3 --> JMD95Z)
197      - use Bryan-Lewis vertical diffusivity
198      - use multidimensional advection
199      - remove old virtual virtual in dic pkg, now done through ptracer pkg
200      - change a couple of parameters in dic pkg
201    o pkg/ctrl: change formula in adctrl_bound.F and add a parameter to ctrl_map_ini_gen.F
202    o pkg/obcs: change default to OBCSfixTopo = .true.,
203      - set OBCSfixTopo=.false. in exp4/input/data.obcs to reproduce old result
204      - replace "debugMode" with "debugLevel .GE. debLevB"
205    o implementation of TAF directives for gchem,cfc,dic
206    o remove "exp5" (replaced by tutorial_deep_convection).
207    o pkg/obcs: add code to fix topography gradients normal to open boundaries;
208      this requires computing the index fields OB_Jn/Js/Ie/Iw in obcs_readparms;
209      the code can be turned on by setting OBCSfixTopo = .true. in data.obcs
210      --> changes results in exp4, seaice_obcs
211    o tutorial_deep_convection :
212      update the set-up and increase resolution and domain size ; start
213      from pseudo initial conditions = output at t=120mn in order to see
214      something happening when running testreport.
215    o pkg/seaice: add os7mp as an advection scheme
216                  add check for advection schemes
217                  add a flag for restoring T and S underneath sea ice
218    o pkg/my82: add netcdf-support and diagnostics
219    o thsice pkg:
220      - Now hsMax limits snow height by turning it into ice following
221        flooding scheme (and now conserving energy)
222      - Slight rewriting of the formula in thsice_calc_thick.F
223      - Parameter rhowi eliminated to be replaced by floodFac = (rhosw-rhoi)/rhos
224      --> changes results of global_ocean.cs32x15.icedyn and global_ocean.cs32x15.thsice
225    
226    checkpoint59p
227    o gchem / dic / cfc :
228      - add useDIC, useCFC , read from "data.gchem" (& hold in GCHEM.h);
229      - add new parameter files: "data.dic" & "data.cfc" ;
230      - various re-arrangement in initialisation & header file ;
231      - fix tutorial_global_oce_biogeo for multi-threaded test.
232    o pkg/dic: test for "pickup_dic" file when restarting ;
233      if no pickup-file, can restart with a re-initialised pH (same as it did
234      before) providing pickupStrictlyMatch is set to False.
235    o change argument list of S/R PTRACERS_WRITE_PICKUP & MYPACKAGE_WRITE_PICKUP
236      + fix call to S/R GGL90_WRITE_PICKUP & DIC_WRITE_PICKUP
237    o add a "warning" (to Error msg file) when an Active Tracer is not using AB-2
238      and staggerTimeStep is off (needed for stability of Internal-wave dynamics).
239    o move out of PARAMS.h & data the last pieces of old-ptracer code: tauTr1ClimRelax,
240     & lambdaTr1ClimRelax ; put those 2 params in PTRACERS_PARAMS.h & data.ptracers
241       (note: not clear to me what lambdaTr1ClimRelax is still used for ...)
242    o pkg/mom_vecinv: - new parameter "selectVortScheme" to select which
243       scheme to use for vorticty-term ;
244     - compute upwindVorticity=T case within mom_vi_u/v_coriolis_c4.F
245       (with default selectVortScheme, return to original discretisation)
246     - remove weird combination (e.g.: upwindVorticity & highOrderVorticity)
247    o pkg/seaice: add a line to the summary to indicate grid type (B/C)
248    o in mom_calc_visc, fix average value of viscAh_W & viscA4_W next to the
249      bottom ; only used with variable horizontal viscosity and non-hydrostatic.
250      also fix diagnostics VISCAHW & VISCA4W.
251    
252    checkpoint59o
253    o dome/code/obcs_calc.F: avoid division by zero (detected using gfortran).
254    o change the loop ordering in most gad_*_adv_x.F to improve vectorization:
255      move a few statemens out the main loop into separate loops
256    o pkg/shelfice:
257      - sort out freshwater flux; convert freshwater fluxes to mass fluxes
258        (kg/m^2/s), does not break tests, because in verification/isomip,
259        rhoConstFresh=rhoConst (by accident)
260      - rearrange computation of tLoc, sLoc, pLoc to make code more efficient
261      - move S/R find_rho_scalar, pkg/ecco/sw_ptmp.F, pkg/ecco/sw_adtg.F into
262        new file model/src/seawater.F, so that they are available for all pkgs.
263      - convert potential temperature into in-situ temperature. This changes the
264        isomip tests => update tests
265    o add a flag writePickupAtEnd (default=true) to be able to suppress
266      writing a pickup at the last timestep
267    o tools/mpack-1.6 :
268      - disable automake (not working) and autoconf (not needed).
269      - update to version 1.6.4 which fix MD5 code on some 64 bits platforms
270        also cleaner with much less compilation warnings.
271    o pkg/profiles:
272      rename profiles_interp_mean_genericgrid as profiles_interp_mean_gg
273      (for "less than 32 characters name" compiler requirement)
274    o pkg/obcs and pkg/exf: added capability to specify seaice open boundary
275      conditions that have a different sampling frequency than S/T/U/V obcs
276    o pkg/diagnostics (stats-diags):
277      - fix global Min/Max in case 1 processor get only empty tiles
278    o genmake2: replace (4 times)
279         make genmake_tc_1.o >> genmake_warnings 2>&1
280      with
281         COMM="$CC $CFLAGS -c genmake_tc_1.c"
282         echo $COMM >> genmake_warnings
283         $COMM >> genmake_warnings 2>&1
284      to make genmake2 always see the value of CC as specified in the optfile.
285    o generic_advdiff: - prather advection scheme (SOM) coded for CS-grid.
286      - add diagnostics for 1srt & 2nd Order moments and sub-grid variance.
287      - modify verification advect_cs test to test SOM-advection on CS-grid.
288    o pkg/ctrl:
289      - Rewrite of ctrl_map_ini_ecco.F,
290        introducing a generic routine (ctrl_map_ini_gen.F).
291      - Modification of ctrl_bound/adctrl_bound handling control vector bounds.
292    
293    checkpoint59n
294    o pkg/diagnostics: for large number of diagnostics, store diagnostic mate
295      number in dedicate array "hdiag":
296      - new version of S/R DIAGNOSTICS_ADD2LIST : DIAGNOSTICS_ADDTOLIST
297        with 1 more argument (mate number); modify old version DIAGNOSTICS_ADD2LIST.
298      - many small changes (integer format) for large number of diagnostics
299      - start to use DIAGNOSTICS_ADDTOLIST (necessary for diagnostics with
300        a counter mate) in pkg diagnostics, ptracers, thsice & aim_v23.
301    o add parameter rotateGrid and Euler angles EulerPhi/Theta/Psi. For
302      usingSphericalGrid, this allows to define the rotated grid coordinates
303      via phiMin/thetaMin/dxSpacing/dySpacing, etc., but then re-compute the
304      geographical coordinates according to the inverse of the rotation defined
305      by the Euler angles, so that Coriolis parameter and online-interpolation by
306      exf works with the geographical coordinates on XC/YC/XG/YG.
307      Naturally, this feature does not work with all packages, so some
308      combinations are prohibited in config_summary (flt, flt_zonal, ecco,
309      profiles), because there the coordinates are assumed to be regular
310      spherical grid coordinates.
311    o pkg/gmredi,ctrl,ecco,autodiff,grdchk and model/src,inc:
312      - introduce isopycnal diffusion coefficient control.
313    o tools/adjoint_options:
314      - additional control vector components.
315    o pkg/mnc: have mnc create marginally meaning full coordinate variables
316      (that is the grid indices) if usingCurvilinearGrid and NOT EXCH2
317    o pkg/mypackage:
318      - add example of read/write pickup for state-var ;
319      - add entry points to the main code for state-vars diags & write-pickup.
320    o pkg/exf: rewrite of exf_getffieldrec.F to properly deal with year
321      transitions for useExfYearlyFields
322      - add new subroutine that determines the file to read from for
323        use*YearlyFields = .TRUE. and .FALSE.
324      - add a verification experiment to global_with_exf that tests
325        useExfYearlyFields with USE_EXF_INTERPOLATION defined
326    o pkg/obcs/exf: add useOBCSYearlyFields (=.FALSE.) to obcs with exf in
327      analogy to useExfYearlyFields; rearrange obcs_prescribe_read: two new
328      subroutines (which could be generated from a template, because they are
329      almost identical), for now they are included in obcs_prescribe_read.F for
330      simplicity
331    o pkg/exf:
332      - add a little more diagnostic to exf_interp_read (in analogy to
333        mds_read_field, can be turned off with debugLevel < debugLevA=1)
334      - improve vectorizability of exf_interp for TARGET_NEC_SX, makes code
335        ugly but fast by unrolling short inner loops, inserting a unroll=8
336        directive in routine lagran, and splitting a loop and making do while the
337        outermost loop (the latter requires the intoduction of index arrays)
338    o pkg/obcs: replace obcs_apply_area/heff/hsalt/hsnow with obcs_apply_seaice
339    o pkg/seaice: moved DIFFERENT_MULTIPLE from seaice_model to seaice_dynsolver
340      http://forge.csail.mit.edu/pipermail/mitgcm-devel/2008-January/003173.html
341    o verification/seaice_obcs: updated for restart test and latest options
342    o pkg/seaice: add a new flag SEAICEuseTEM to use a slightly different
343      ice rheology (so-called truncated ellipse, that gets rid of tensile stress);
344      for now this is only available for the C-grid code and also within
345      #ifdef SEAICE_ALLOW_TEM, because this option may slow down the EVP code
346    
347    checkpoint59m
348    o pkg/seaice: use different time constant for melting (SEAICE_gamma_t)
349      and freezing (SEAICE_gamma_t_frz) ice due to mixed layer temperature
350    o gad_som : fix flux output (& diagnostics) to have same units as other  
351      advection scheme fluxes (was previously multiplied by deltaT).  
352    o added verification/seaice_obcs both to test seaice open boundaries
353      and to provide an example matlab scrpt for generating them
354    o added verification/lab_sea/input.salt_plume for testing pkg/salt_plume
355    o pkg/salt_plume: clean up salt_plume_frac.F to
356      remove redundancy in PlumeMethod 1 and 4
357    o pkg/kpp: added saltplume diagnostics
358    o pkg/obcs and pkg/seaice:
359      - do not set uice and vice to zero when OB*icefile are unspecified
360      - OBCS_SEAICE_AVOID_CONVERGENCE is undefined by default
361      - moved seaice tracer obcs after call to seaice_growth
362  o pkg/salt_plume: added various options for salt plume depth  o pkg/salt_plume: added various options for salt plume depth
363    criterion and for vertical distribution of the salt    criterion and for vertical distribution of the salt
364    

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